| Nurse practitioner | 135 |
| Physical therapist (private practice) | 73 |
| Family practice | 57 |
| Physician assistant | 49 |
| Certified Registered Nurse Anesthetist (CRNA) | 44 |
| Internal medicine | 31 |
| Chiropractic | 29 |
| Emergency medicine | 23 |
| Diagnostic Radiology | 19 |
| Licensed clinical social worker | 19 |
| Obstetrics/gynecology | 18 |
| Orthopedic surgery | 18 |
| Anesthesiology | 18 |
| Centralized Flu | 16 |
| Optometrist | 16 |
| Occupational therapist (private practice) | 14 |
| Mass Immunization Roster Billers | 12 |
| Mental Health Counselors | 10 |
| Ophthalmology | 10 |
| Speech / language pathology | 9 |
| General surgery | 9 |
| Dermatology | 7 |
| Cardiology | 6 |
| Audiologist (billing independently) | 6 |
| Gastroenterology | 6 |
| Pulmonary disease | 5 |
| Pathology | 5 |
| Podiatry | 5 |
| Clinical Laboratory (Billing Independently) | 5 |
| Physical medicine and rehabilitation | 4 |
| Neurology | 4 |
| Nephrology | 4 |
| Interventional Cardiology | 4 |
| Otolaryngology | 4 |
| Urology | 4 |
| Radiation oncology | 3 |
| Endocrinology | 3 |
| Clinical psychologist | 3 |
| General practice | 3 |
| Neurosurgery | 3 |
| Hospitalist | 3 |
| Hematology/oncology | 3 |
| Psychiatry | 2 |
| Cardiac surgery | 2 |
| Rheumatology | 2 |
| Infectious disease | 2 |
| Pharmacy | 2 |
| Medical oncology | 2 |
| Pain Management | 2 |
| Surgical oncology | 2 |
| Allergy/immunology | 2 |
| Thoracic surgery | 1 |
| Cardiac Electrophysiology | 1 |
| Ambulatory Surgical Center | 1 |
| Interventional radiology | 1 |
| Sports Medicine | 1 |
| Plastic and reconstructive surgery | 1 |
| Registered Dietician/Nutrition Professional | 1 |
| Gynecologist/oncologist | 1 |
| Ambulance Service Supplier, e.g., private ambulance companies, funeral homes | 1 |
| Pediatric medicine | 1 |
| Independent Diagnostic Testing Facility (IDTF) | 1 |